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I replaced my blower motor and resistor and I only get one speed is it the relay next to blower?

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Next--- is you get,study & follow wiring diagrams,
and do some testing

That was where you were to start at-- in the beginning

Not replace any parts-- until you found a problem

Posted on Dec 05, 2014

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Posted on Jan 02, 2017

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2006. I switched the vents from front to feet and defrost and turned it up all the way and it stopped blowing. Why?


That is the blower motor relay, probably . You have all speeds but high ? High speed has a direct path to the blower motor through a high blow relay . All other speeds go through the blower motor resistor assembly . This relay is part of the blower motor resistor assembly > That is if you have manual HVAC system .
Blower Motor Resistor Assembly (CJ3)
Under the right side of the I/P mounted to the HVAC box next to the blower motor.

Dec 01, 2015 | GMC Sierra Cars & Trucks

2 Answers

Replaced the resister and blower motor still nothing what next


Test for current to motor. If none you have either a bad fuse, bad switch or bad wiring. Nothing else left.

Feb 26, 2015 | Cars & Trucks

1 Answer

No power to the blower switch or blower motor or to the connector or resistor-relays and fuses are ok so are the items previously mentioned


I would 1st jumper 12 volts to the blower to see if runs, the motor could be defective, it is fairly common. If the blower checks ok then replace the blower motor speed control resistor (located next to the motor plugged into the air ducting for cooling of the resistor), the thermal limiter fuse that is part of the blower motor speed control resistor is blown.

Oct 27, 2011 | Cars & Trucks

1 Answer

--2005 GMC Envoy AC Trouble--(compressor still active) Have replaced blower motor (original one had "burn" evidence), resistor and resistor connector. The blower is still not working. Have...


SOUND LIKE BAD BLOWER MOTOR RESISTOR.CHECK BLOWER MOTOR HI BLOW FUSE AND RELAY.YOU WILL NEED OWNERS MANUAL IN GLOVE COMPARTMENT TO LOCATED BLOWER MOTOR FUSES AND RELAYS.

Jun 06, 2011 | GMC Envoy Cars & Trucks

1 Answer

Heater/acblower fan doesn't work on high. Other fan speeds work ok. what is the problem? It's a 2003 chevy astro van


Hi, check fuse 12 first. If it is good, you will need to replace the blower resistor. The high speed relay is built into the resistor. The resistor is next to the blower motor and looks like the picture below. There is a connector in the resistor and the 2-wire connector coming out of the resistor attaches to the blower. The blower is usually under the dash above the passenger's feet. You may have to remove a kick panel to see the motor and resistor. Please let us know if you have any questions, and thanks for using FixYa.

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Feb 19, 2011 | 2000 Chevrolet Astro

2 Answers

BLOWER HEATER FAN SWITCH IS ONLY WORKING ON HIGH SPEED WITH LITTLE HEAT.


The blower motor fan is controlled by the blower motor resistor.Its the resistor which controls the fan on respective speed which you select.But if the resistor goes faulty,then it will not be able to set the required speed which you set for fan,so it works on high speed only. In this case you will have to replace the blower motor resistor. Check fog for the location of blower motor resistor location:--- see part number 8 in the diagram below. helpmech_11.gif

The blower motor resistor is located next to blower motor under the dash.Its fitted with 2 screws and a wiring connector.You have to remove the screws and wiring connector and take the resistor out and place the new resistor in same position and connect the connector as well as screws. ------------------- this should help.Thanks.Helpmech.

Jan 18, 2011 | 1999 Oldsmobile Alero

2 Answers

Heater blower on van won't come on. Already replaced heater blower and checked fuses.


Check blower motor resistor make sure none of the spring's are broken, resistor sit next to blower motor in housing, also check blower motor relay for voltage, also sit over by blower motor outside of housing and last check voltage at blower motor switch.Hope this was very helpful,good luck.

Mar 25, 2010 | 1989 Chevrolet Astro Cargo

1 Answer

My blower for heat, defrost etc. just quit and fuses are all good. What do I do next?


Unplug the power connector to the blower motor and check for power to the plug. If you have power replace the blower motor. If you do not have power check the speed resistor by switching between high and low speeds.

Also check the relay to make sure that it is functioning.

The speed resistor can be burned out in one speed. Normally they do not fail in more than one speed unless the plug to it is damaged. The plug for the resistor can be found on the firewall under the hood on the passenger side.

Replacing blower motor is easy, it books about .7 hours according to Mitchell so it should not be hard to replace. You will need no more than basic hand tools and a test light to figure this one out.

Feb 10, 2010 | 1990 Chevrolet Suburban

1 Answer

My 1996 cadillac eldo fan low speed only


replace the the blower motor resistor located next to the blower motor. this controls the blower speeds

Jan 26, 2010 | 1998 Cadillac Seville

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